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WO2008069370A1 - Filtre pour photocatalyse et son procédé de fabrication - Google Patents

Filtre pour photocatalyse et son procédé de fabrication Download PDF

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Publication number
WO2008069370A1
WO2008069370A1 PCT/KR2007/001480 KR2007001480W WO2008069370A1 WO 2008069370 A1 WO2008069370 A1 WO 2008069370A1 KR 2007001480 W KR2007001480 W KR 2007001480W WO 2008069370 A1 WO2008069370 A1 WO 2008069370A1
Authority
WO
WIPO (PCT)
Prior art keywords
photocatalyst
beads
filter
photocatalyst filter
binder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2007/001480
Other languages
English (en)
Inventor
Jin Yeong Lim
Cheol Nam
Eui Bung Jeoung
Jae Hyeon Park
Kyong Hwan Lee
Seung Young Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SANE TECH Co Ltd
Original Assignee
SANE TECH Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SANE TECH Co Ltd filed Critical SANE TECH Co Ltd
Publication of WO2008069370A1 publication Critical patent/WO2008069370A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/39—Photocatalytic properties
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18—Radiation
    • A61L9/20—Ultraviolet radiation
    • A61L9/205—Ultraviolet radiation using a photocatalyst or photosensitiser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0215—Coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0215—Coating
    • B01J37/0221—Coating of particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20707—Titanium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/80—Type of catalytic reaction
    • B01D2255/802—Photocatalytic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/92—Dimensions
    • B01D2255/9202—Linear dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/804—UV light

Definitions

  • the present invention relates to a photocatalyst filter using a photocatalyst and to a method of manufacturing the same, and more particularly, the present invention relates to a photocatalyst filter, which comprises a bead layer including a plurality of beads bound to each other to form fine pores and a photocatalyst layer formed on the bead layer, and to a method of manufacturing the same.
  • a photocatalyst filter which comprises a bead layer including a plurality of beads bound to each other to form fine pores and a photocatalyst layer formed on the bead layer, and to a method of manufacturing the same.
  • a photochemical reaction using a photocatalyst functions to completely decompose various types of harmful material in the air and in aqueous solutions to thus convert them into harmless material. Further, since the photochemical reaction using the photocatalyst requires only a light source, and thus does not entail problems related to the production of secondary harmful material or the disposal of a filter, the photocatalyst may be permanently used.
  • Titanium dioxide which is very useful as the photocatalyst, is a material that is harmless to the human body, and thus is suitable for use in general living goods. Accordingly, thorough research into the treatment of environmental contaminants through a photochemical reaction using a titanium dioxide photocatalyst has been conducted.
  • Publication No. 10-2003-0088745 has a honeycombed structure, in which the filter is formed with transparent synthetic resin, coated with a photocatalyst, and then formed in multiple layers, and thus the surface area thereof is maximized, consequently realizing excellent deodorization and disinfection effects.
  • this filter does not filter fine dust in the air, an additional filter member should be provided.
  • an object of the present invention is to provide a photocatalyst filter, which is able to exhibit excellent deodorization and disinfection effects, to filter fine dust, and to serve as part of a housing of an air purifier, and also to provide a method of manufacturing the same.
  • the present invention provides a photocatalyst filter, comprising a bead layer including a plurality of beads bound to each other to form fine pores, and a photocatalyst layer formed on the bead layer.
  • the plurality of beads, constituting the bead layer preferably has a diameter of
  • the bead layer preferably has a thickness of 3.0-20.0 D.
  • the bead layer preferably comprises 100 parts by weight of the plurality of beads and 0.8-4.5 parts by weight of a binder including a thermosetting resin and a curing agent.
  • the present invention provides a method of manufacturing a photocatalyst filter, comprising steps of:
  • step b) molding the mixture of step a) to a predetermined shape so that fine pores are formed between the beads, and then performing a curing process.
  • the present invention provides a method of manufacturing a photocatalyst filter, comprising steps of:
  • step b) molding the mixture of step a) to a predetermined shape so that fine pores are formed between the beads, and then performing a curing process;
  • step a) is preferably conducted by mixing 100 parts by weight of the plurality of beads, coated with the photocatalyst, with 0.8-4.5 parts by weight of the binder, including the thermosetting resin and the curing agent.
  • step b) is preferably conducted by molding the mixture of step a) to a thickness of 3.0-20.0 D and then performing a curing process.
  • step b) is preferably conducted by placing the mixture in the molding space of a mold, compressing the mixture placed in the mold to thus produce a molded product, and then curing the molded product in a heating atmosphere.
  • the photocatalyst filter of the present invention comprises a bead layer including a plurality of beads bound to each other to form fine pores, and a photocatalyst layer formed on the bead layer.
  • the bead layer is obtained by mixing the plurality of beads with a binder and then molding the mixture to form a predetermined shape.
  • the plurality of beads functions to filter fine dust through fine pores formed by the mutual contact of the beads and also to efficiently circulate air, and the diameter thereof is preferably set to 0.5-2.0 D.
  • the size of the pores formed by mutual contact of the beads is very small, and thus such pores are filled with the binder, undesirably impeding the circulation of air.
  • the diameter of the beads exceeds 2.0 D, the size of the pores formed by the mutual contact of the beads is large, and thus the circulation of air is efficiently realized, but fine dust may not be effectively filtered, consequently making it impossible to maximally exhibit the filter function.
  • the binder which is used to bind the plurality of beads to each other, includes thermosetting resin, such as epoxy resin or phenol resin, and a curing agent, and is added in an amount of 0.8-4.5 parts by weight, based on 100 parts by weight of the plurality of beads.
  • the binder When the binder is contained in an amount less than 0.8 parts by weight, the beads are weakly bound to each other, undesirably decreasing durability. On the other hand, when the binder is contained in an amount exceeding 4.5 parts by weight, the beads are firmly bound to each other, thus increasing durability, but the pores formed between the beads are filled with the binder, undesirably impeding the circulation of air, making it impossible to maximally exhibit the filter function.
  • FIG. 1 is a view showing a cylindrical photocatalyst filter
  • FIG. 2 is view showing a plate-shaped photocatalyst filter.
  • the bead layer obtained by subjecting the plurality of beads and the binder to mixing, molding and curing, has a predetermined shape, including a cylinder, a cone, a polygonal pyramid, such as a triangular pyramid or a quadrangular pyramid, and a polygonal plate, such as a triangular plate or a quadrangular plate, as shown in FIGS. 1 and 2, and the thickness (T) thereof is preferably set to 3.0-20.0 D.
  • the photocatalyst layer functions to convert harmful material in the air, introduced into the purifier, into harmless material using UV light applied from a UV lamp.
  • the photocatalyst layer may be formed 1) by subjecting a plurality of beads and a binder to mixing, molding, and curing to thus form a bead layer, which is then coated with a photocatalyst, thus forming a photocatalyst layer, or alternatively, 2) by subjecting beads, coated with a photocatalyst, and a binder to mixing, molding and curing, thus forming a photocatalyst layer.
  • the photocatalyst filter of the present invention includes the bead layer having fine pores and the photocatalyst layer formed on the bead layer, and therefore exhibits deodorization and disinfection effects through the reaction with UV light and also manifests filtration effects through fine pores.
  • the photocatalyst layer, which is formed on the bead layer has an increased contact area with UV light, excellent deodorization and disinfection effects may be realized.
  • the method of manufacturing the photocatalyst filter of the present invention includes 1) a method including forming a bead layer using a plurality of beads coated with a photocatalyst, and 2) a method including forming a bead layer, and then forming a photocatalyst layer on the bead layer.
  • the method 1) for manufacturing the photocatalyst filter of the present invention includes mixing a plurality of beads, coated with a photocatalyst, with a binder, and then subjecting the mixture to molding and curing.
  • the mixing process is conducted by uniformly mixing a plurality of beads, coated with a photocatalyst, with a binder. As such, it is preferred that 100 parts by weight of the beads and 0.8-4.5 parts by weight of the binder be mixed to thus obtain a mixture.
  • the binder In the case where the binder is used in an amount less than 0.8 parts by weight, the plurality of beads is weakly bound to each other and thus may be easily broken by external force due to poor durability. On the other hand, in the case where the binder is used in an amount exceeding 4.5 parts by weight, fine spaces, which are formed between the beads, are filled with the binder, undesirably impeding the circulation of air.
  • the diameter of the plurality of beads coated with the photocatalyst is preferably set to 0.5-2.0 D, in order to effectively filter fine dust and to efficiently circulate air.
  • the molding and curing processes are conducted by placing the mixture in the molding space of a mold to thus form a molded product having a predetermined shape, which is then cured.
  • the molding space of the mold is formed to correspond to the cylinder or plate shape of a molded product, and the width of the molding space is set to 3.0-20.0 D so as to obtain a molded product having superior durability and high fine dust filtration efficiency.
  • the mixture, placed in the molding space of the mold, is preferably compressed using a press, so that the plurality of beads is brought into close contact with each other, without empty spaces.
  • the molded product thus obtained is cured in a heating atmosphere, thereby completing the photocatalyst filter of the present invention.
  • the curing temperature is determined depending on the type of the curing agent. For example, in the case where an acid anhydride-based curing agent is used, the molded product is cured at 110- 17O 0 C.
  • the pyrolysis temperature varies depending on the types of thermosetting resin and curing agent of the binder, and also on the amounts thereof, it is not particularly limited.
  • a pyrolysis temperature is set to 180 ⁇ 230°C.
  • the method 2) for manufacturing the photocatalyst filter of the present invention includes subjecting a plurality of beads and a binder to mixing, molding, curing, and then coating using a photocatalyst.
  • the mixing process, the molding process and the curing process of the above method are the same as the mixing process, the molding process and the curing process of the method 1) for manufacturing the photocatalyst filter, with the exception that a plurality of beads which is not coated with a photocatalyst is used, and thus a detailed description thereof is omitted.
  • the coating process using a photocatalyst is performed by coating the surface of the cured product obtained through molding and curing with the photocatalyst.
  • Examples of the process of coating the cured product with the photocatalyst include, but are not limited to, a process of spraying a photocatalyst suspension on the surface of the cured product, a process of immersing the cured product in a photocatalyst suspension, a process of applying a photocatalyst suspension on the surface of the cured product using a brush, and a process of spraying photocatalyst powder on the wet surface of the cured product.
  • the photocatalyst filter thus obtained may be widely used for air purifiers.
  • the photocatalyst filter of the present invention is not mounted in the air purifier but may serve as part of a housing, unlike conventional filters.
  • a UV lamp is mounted in the cylindrical photocatalyst filter
  • an air blower is mounted to the lower portion of the cylindrical photocatalyst filter
  • a cover is tightly mounted to the upper portion of the cylindrical photocatalyst filter.
  • External air is introduced into the cylindrical photocatalyst filter through the air blower, and such air is deodorized and disinfected through oxidation with UV light applied from the UV lamp and with the photocatalyst layer of the cylindrical photocatalyst filter, and is then discharged to the outside through fine pores formed in the cylindrical photocatalyst filter. As such, fine dust contained in air is filtered through the fine pores.
  • the plurality of beads constituting the cylindrical photocatalyst filter may be formed to have various colors, and thus the air purifier may be used as a decorative item.
  • the photocatalyst filter of the present invention is applied to the air purifier, it is advantageous because it may serve as part of the housing, deodorization and disinfection effects may be exhibited using UV light and the photocatalyst, and as well, fine dust may be filtered through fine pores formed in the photocatalyst filter.
  • an air purifier in the case where the photocatalyst filter has a plate shape, includes a housing having an open front surface, a plate-shaped photocatalyst filter tightly mounted to the front surface of the housing, a UV lamp mounted in the housing, and an air blower for introducing external air into the housing.
  • the plate-shaped photocatalyst filter may be provided as part of the housing, and thus, the structure of the air purifier may be simplified, and furthermore, deodorization and disinfection effects and filtration effects of fine dust may be exhibited.
  • the photocatalyst filter of the present invention may serve as the outer covering of the air purifier, that is, as part of the housing, therefore making it possible to decrease the size of the air purifier.
  • the photocatalyst filter includes a bead layer having fine pores and a photocatalyst layer formed on the bead layer, thereby realizing deodorization and disinfection effects using UV light applied from a UV lamp and also using the photocatalyst layer.
  • fine dust may be filtered through fine pores formed in the bead layer.
  • a function as a decorative item may be provided.
  • the plurality of beads constituting the bead layer has a diameter of 0.5-2.0 D, and the bead layer has a thickness of 3.0-20.0 D, thereby effectively filtering fine dust.
  • the bead layer includes 100 parts by weight of the plurality of beads and 0.8-4.5 parts by weight of a binder composed of a thermosetting resin and a curing agent, in which the plurality of beads is firmly bound to each other, thus exhibiting superior durability. As well, because fine pores formed between the beads are not filled with the binder, it is possible to efficiently circulate air to thus effectively filter fine dust.
  • the method of manufacturing the photocatalyst filter of the present invention comprises mixing the plurality of beads, coated with the photocatalyst, with the binder, molding the mixture to a predetermined shape to form fine pores between the beads, and curing the molded product, thereby realizing deodorization and disinfection effects and also enabling the production of a photocatalyst filter that is able to filter fine dust through fine pores using a simple process.
  • the molding and curing processes include placing the mixture in the molding space of a mold, compressing the mixture placed in the mold to thus form the molded product, and curing the molded product in a heating atmosphere. Thereby, the beads are brought into mutual contact and thus bound to each other without empty spaces therebetween, yielding a cured product having fine pores.
  • a pyrolysis process of pyrolyzing the binder layer formed on the surface of the cured product is further conducted, so that the binder layer formed on the surface of the cured product is pyrolyzed to thus remove it, thereby effectively realizing deodorization and disinfection effects using the photocatalyst layer and UV light.
  • the method of the present invention includes mixing the plurality of beads with the binder, molding the mixture to form fine pores between the beads, curing the molded product, and forming the photocatalyst layer on the surface of the cured product.
  • the beads are brought into mutual contact and are thus bound to each other without empty spaces therebetween, yielding the cured product having fine pores.
  • FIG. is a view showing a cylindrical photocatalyst filter
  • FIG. 2 is a view showing a plate-shaped photocatalyst filter.
  • cylindrical photocatalyst filters of Examples 2 to 4 were manufactured using glass beads having a diameter of 1.0 D and coated with a photocatalyst, glass beads having a diameter of 1.5 D and coated with a photocatalyst, and glass beads having a diameter of 2.0 D and coated with a photocatalyst, respectively.
  • photocatalyst filters of Examples 5 to 7 were manufactured using mixtures obtained by uniformly mixing 100 parts by weight of glass beads coated with a photocatalyst with 0.8 parts by weight, 3.0 parts by weight, and 4.5 parts by weight, respectively, of a binder.
  • a photocatalyst filter of Example 8 having a length of 300 D, an outer diameter of
  • a photocatalyst filter of Example 9 having a length of 300 D, an outer diameter of 100 D, and an inner diameter of 85 D
  • a photocatalyst filter of Example 10 having a length of 300 D, an outer diameter of 100 D, and an inner diameter of 80 D, were manufactured, respectively, using molds having molding spaces having widths different from those in Example 1.
  • the cylindrical molded product was cured at 150 ⁇ 170°C, and was then subjected to surface pyrolysis at 180 ⁇ 230°C and then cooling, thus manufacturing a cylindrical photocatalyst filter of Example 10.
  • the air volume test of the photocatalyst filters of Examples 1 to 12 was conducted according to Appendix 1 of KSC 9304. [85] The test for evaluating the ability to oxidize organic material of the photocatalyst filter was conducted by disposing an air purifier having the cylindrical photocatalyst filter in a closed space, injecting 500 ppm of acetaldehyde into the closed space, and measuring the concentration of acetaldehyde over time using a gas analyzer to thus determine the time period required to completely oxidize acetaldehyde.
  • the present invention provides a photocatalyst filter, which is able to exhibit excellent deodorization and disinfection effects and is able to filter fine dust, and thus can be widely used for air purifiers.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

Cette invention porte sur un filtre pour photocatalyse utilisant un photocatalyseur et sur un procédé de fabrication de celui-ci. Plus particulièrement, l'invention porte sur un filtre pour photocatalyse, comportant une couche de perles ayant une pluralité de perles liées entre elles pour former des pores fins et une couche photocatalytique formée sur la couche de perles, ainsi que sur un procédé de fabrication de ce filtre.
PCT/KR2007/001480 2006-12-06 2007-03-27 Filtre pour photocatalyse et son procédé de fabrication Ceased WO2008069370A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020060123230A KR100765825B1 (ko) 2006-12-06 2006-12-06 광촉매 필터 및 그 제조방법
KR10-2006-0123230 2006-12-06

Publications (1)

Publication Number Publication Date
WO2008069370A1 true WO2008069370A1 (fr) 2008-06-12

Family

ID=39419909

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Application Number Title Priority Date Filing Date
PCT/KR2007/001480 Ceased WO2008069370A1 (fr) 2006-12-06 2007-03-27 Filtre pour photocatalyse et son procédé de fabrication

Country Status (2)

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KR (1) KR100765825B1 (fr)
WO (1) WO2008069370A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102341519B1 (ko) * 2021-07-27 2021-12-21 허찬 광촉매 필터 제조용 금형과 이를 이용한 광촉매 필터 제조방법 및 그 광촉매

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990037362A (ko) * 1997-10-20 1999-05-25 에다 데쓰야 광촉매-지지체 및 광촉매 장치
US6210779B1 (en) * 1993-12-10 2001-04-03 Toto Ltd. Multi-functional material with photocatalytic functions and method of manufacturing same
WO2004045660A1 (fr) * 2002-11-15 2004-06-03 Fujitsu Limited Epurateur d'air
KR200411427Y1 (ko) * 2005-10-20 2006-03-14 현대하이켐(주) 광촉매 필터

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6210779B1 (en) * 1993-12-10 2001-04-03 Toto Ltd. Multi-functional material with photocatalytic functions and method of manufacturing same
KR19990037362A (ko) * 1997-10-20 1999-05-25 에다 데쓰야 광촉매-지지체 및 광촉매 장치
WO2004045660A1 (fr) * 2002-11-15 2004-06-03 Fujitsu Limited Epurateur d'air
KR200411427Y1 (ko) * 2005-10-20 2006-03-14 현대하이켐(주) 광촉매 필터

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Publication number Publication date
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